Can't cut'n'paste filter expression to clipboard

This is a weird one that probably has a simple answer (I just can't find it).

I'm running Wireshark on OSX High Sierra (Wireshark Version 2.2.5 (v2.2.5-0-g440fd4d)), and for some reason I can't cut'n'paste the filter expression to my clib board. I just want to share the filter with a colleague so he can use it in his wireshark.